WDR91
Function
Functions as a negative regulator of the PI3 kinase/PI3K activity associated with endosomal membranes via BECN1, a core subunit of the PI3K complex. By modifying the phosphatidylinositol 3-phosphate/PtdInsP3 content of endosomal membranes may regulate endosome fusion, recycling, sorting and early to late endosome transport (PubMed:26783301). It is for instance, required for the delivery of cargos like BST2/tetherin from early to late endosome and thereby participates indirectly to their degradation by the lysosome (PubMed:27126989). May play a role in meiosis (By similarity).
Sequence Similarities
Belongs to the WD repeat WDR91 family.
Cellular localization
- Early endosome membrane
- Peripheral membrane protein
- Late endosome membrane
Alternative names
HSPC049, WDR91, WD repeat-containing protein 91